<system.webServer>
<security>
<requestFiltering>
<requestLimits maxQueryString="xxxx"/>
</requestFiltering>
</security>
<httpRuntime requestValidationMode="2.0" maxRequestLength="20480" maxQueryStringLength="20480" />
<bindings>
<wsHttpBinding>
<binding name="NoneSecurity"
maxBufferPoolSize="12000000" maxReceivedMessageSize="12000000" useDefaultWebProxy="false">
<readerQuotas maxStringContentLength="12000000" maxArrayLength="12000000"/>
<security mode="None"/>
</binding>
</wsHttpBinding>
</bindings>
bindingConfiguration="NoneSecurity"